The 1998 Jeep Grand Cherokee uses a spin-on oil filter with a standard 3/4-16 thread. The exact part depends on the engine: 4.0L inline-six, 5.2L V8, or 5.9L Magnum.
Across 1998, Jeep offered multiple engine options in the Grand Cherokee, and the right filter hinges on which engine you have. This article outlines the available engines and how to identify and select the correct filter, along with general guidance on cross-reference brands and fitment.
Engine options in the 1998 Grand Cherokee
Below are the engines that were typically available in the 1998 Grand Cherokee. Each uses a spin-on filter that shares the same basic thread, but you should verify the exact length and clearance for your vehicle.
- 4.0L inline-six (I6)
- 5.2L Magnum V8
- 5.9L Magnum V8
In short, all three engines used a 3/4-16 threaded spin-on oil filter, with differences mainly in filter length and fitment. When replacing, confirm the engine type and, if possible, compare with the removed filter or consult a parts retailer using your VIN to ensure you pick the correct size.
4.0L inline-six (I6)
The 4.0L inline-six in the 1998 Grand Cherokee uses the standard spin-on oil filter with a 3/4-16 thread. Most major brands offer a compatible filter for this engine (Fram, Wix, Bosch, Motorcraft, Mopar). To ensure a proper fit, verify that the replacement is listed for a 1998 Jeep Grand Cherokee with a 4.0L engine and compare the dimensions or consult the retailer with your VIN or engine code.
5.2L Magnum V8
The 5.2L Magnum V8 also uses a spin-on oil filter with the same 3/4-16 thread. Replacement options from the same set of brands (Fram, Wix, Bosch, Motorcraft, Mopar) are commonly available. As with the 4.0L, double-check the exact part number or cross-reference using your vehicle’s VIN or engine code to ensure the correct length and clearance.
5.9L Magnum V8
The 5.9L Magnum is another V8 option for certain 1998 Grand Cherokees and uses a spin-on filter with 3/4-16 threads as well. Many owners use the same brands and sizes that fit the 5.2L, but it’s wise to confirm the filter’s length and fitment for the 5.9L application, especially in tighter engine compartments.
How to verify you have the correct filter
To ensure you buy the right oil filter, use these checks: compare the removed filter to a replacement, verify the engine code or VIN with the parts seller, and consult the owner's manual or vehicle documentation for the exact filter specification. When shopping, look for a filter that explicitly lists compatibility with 1998 Grand Cherokee and the appropriate engine (4.0L I6, 5.2L, or 5.9L Magnum).
Summary
For a 1998 Jeep Grand Cherokee, the oil filter is a spin-on type with a 3/4-16 thread. The correct part depends on the engine: 4.0L I6, 5.2L Magnum V8, or 5.9L Magnum V8. Choose from reputable brands (Mopar, Wix, Fram, Bosch, Motorcraft, etc.) and verify the exact engine specification or VIN to ensure proper fitment. When in doubt, ask a parts specialist to cross-reference using your vehicle’s details.
What was the fastest SUV in 1998?
Among these, the rare 1998 Jeep Grand Cherokee 5.9 Limited stands out as a true classic, once crowned the fastest production SUV in the world.
What type of oil does a 1998 Jeep Cherokee take?
Oil Grade: API*
| Viscosity: | 10W-30 (Above -18°C) 5W-30 (Below 16°C) |
|---|---|
| Capacity: | 6 quarts (with filter). After refill check oil level. |
| Torque: | 30 ft/lbs (Oil Drain Plug) |
What kind of oil filter does a 1998 Jeep Grand Cherokee take?
Motorcraft – Original Equipment Oil Filter: Ideal for Any Type Oil (Part No. FL-300)
What is the most luxurious Grand Cherokee?
2025 Jeep® Grand Cherokee Summit
A CABIN FULL OF COMFORT A CABIN FULL OF COMFORT
Lush materials, heated front seats and ample cargo space make the 2025 Jeep® Grand Cherokee Summit the most luxurious vehicle in its class( Disclosure6).